Drill attachment.



J. A. SWANSON.

DRILL ATTACHMENT. APPLICATION FILED AUG-:21.

Patented Feb. 15,1916.

V Elma/wt JOHN fi-swaNsou THE COLUMBIA PLANOGRAPH co., wlisluNu'roN, D. c

JOHN A. SXVANSON, OF BANTRY, NOR-TH DAKOTA;

DRILL ATTACHMENT.

Specification of Letters Patent.

Application filed August 21, 1915. Serial No. 46,751. i

T 0 all whom it may concern:

Be it known that l, Jot-IN A. Swanson, a subject of the King of Sweden, residing at Bantry, in the county of Mcl lenry and State of North Dakota, have invented certain new and useful Improvements in Drill Attachments, of which the following is, a specification, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in guides and cleaners and more particularly to a device adapted to be applied to a disk drill or cultivator, the main object of the present invention being the provision of a device which is adapted to be applied to the supporting standards of the disk and arranged uponthe outer sides of the disks to guide the same and, at the same time, clean the dirt and other material which might adhere thereto.

It is the purpose of my invention to provide such a device as can be readily applied to drills known as Monitor drills or any other drill of a like character.- These drills are so constructed that after a short period of use, the hubs of the forwardly convergent disks become so worn that the two disks,

- which should nearly touch each other, be-

come separated to such an extent that the hubs have to be ground downagain in order to make the disks of any use.

As stated before, it is the object of my invention to provide a guide acting to retain the convergent portions of the disks in proximity to each other even though the hubs of the disks become worn, this guide being so formed as to scrape or clean the disks of dirt. V

Another object of the invention is to provide a very simple device of this character which may be very cheaply made ant readily applied to practically all makes of disk drills.

Another object of the present invention is the provision of a guide and cleaner of the above character which will possess advantages in points of efliciency and durability, is inexpensive to manufacture and, at the same time, is simple in. construction and operation. 7

With the above and other objects in view, the invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification and claims.

Patented Feb. 15, 1916.

In the accompanying drawing forming a if part of this application, Figure l is a side elevation illustrating my lmproved guide cleaner as applied to a rotary disk drill.

mounted the rotatable forwardly converg-.

ing disks 3. Extending outwardly from the frame 1, is a flange 4: and arranged in parallel relation therewith, a supporting bar 5. The body of the cleaner or guide includes a flat plate '7 adapted to be arranged upon one side of the bar and rigidly secured to the bar 5 and the flange 1, by means of the bolts 6. One end. of the plate 7 is provided with spaced elongated openings 9, whereby to receive the securing bolts 6 which thus adjust-ably secure the plate to the flange at and the bar 5. The outer end'of the plate 7 is longitudinally slotted, as shown at 11 to form the spaced blades 12, said blades being disposed substantially obliquely with respect to thebody of the bar and the cutting edges 13 thereof being arranged in a for wardly convergent relation so as to engage upon the outer faces of converging disks a as shown in dotted lines in Fig. 2. The convergent relation of the cutting edges 13 causes them to bear against the outer faces of the disks and retain the same in their operative positions and, at the same time,-

scrape the dirt and other substance there from. It will be seen that the blades 12 are disposed at a downward and rearward inclination relative to the body of the plate 7 I and that these blades are also outwardly and laterally inclined. Thus the mud which is scraped from the wheels Wlll be guided outward and rearward and at the same time the 13 is enlarged at its inner end to'formv a circular opening 13 having a diameter greater than the space between the cutting edges 13. The object of this is two-fold. If this slot were straight, that is, if the side edges 13 were continuously convergent to the inner extremity of the slot, the disk in wearing would soon cut into the attachlot Inent, whereas by having the slot terminate in an enlarged opening the cutting edge of the disk moves freely and wear is only 011 the side and as a consequence the attachment will wear a great deal longer than it otherwise would. In the second place, if these disks are'made of steel or material which can be bent to a degree after they have been in use for some time and are worn, the blades can be sprung together a little, thereby taking up the wear and drawing the disks toward each other as with a new attachment. If the slot bifurcating the plate did not terminate in an enlarged opening, it is apparent that this could not be accomplished, at least with any degree of satisfaction.

It will be noted that the plate 7 is secured to the supporting member a in such a manner that it may be readily adjusted according to the various sizes of disks which may be used in connection with the drill. The adjusting bolts 6 may be quickly and readily removed from the openings 9 and replaced in a very short space of time, so that the guide and scraper may be quickly and readily adjusted. It will be apparent that the guide and cleaner may be attached to drills, cultivators or any other form of implement wherein forwardly converging rotary disks are used. The device itself, is extremely simple in construction andcan be manufactured and applied to any other well known make of drill at a comparatively low cost. I

While I have shown and described the preferred form of my invention; it will be obvious that various changes in the details of construction and in the proportions may be resorted to for successfully carrying my invention into practice, without sacrificing any of the novel features or departing from the scope of the invention, as defined by the appended claims.

laving thus described this invention, what I claim is 1. A device of the class described. including an elongated plate having spaced openings formed therein, one end of said plate being longitudinally slotted to form spaced blades, said blades being arranged obliquely with respect to each other and converging inwardly toward their inner edges, said blades being disposed diagonally with respect to the plate, and -means whereby to Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

support said plate, as and for the purpose set forth.

2. The combination :with the forwardly converging disks of a drill and a frame supporting said disks including a member disposed substantially in line with the axis of the disks, of a device mounted upon said member for holding the disks in convergent relation including a body adjustably mounted upon. the member for movement toward and from the axis of the disk and having rearwardly divergent extensions engaging on the outer faces of the disks and holding them in proximity to each other, said extensions being downwardly and laterally deflected and acting as scrapers.

3. The combination with the frame and convergently related disks of a disk drill, of means for holding the said disks in convergent relation including a substantially flat plate adjustably mounted upon the frame for movement toward and from the axis of the disk, the plate atits rear end having an approximately V shaped slot formed in it to provide extensions of the plate having rearwardly diverging inner edges engaging on the outer faces of the disks and holding them in proximity to each other.

4. A guide and cleaner of the character described including a supported member formed at one end to provide outwardly and;

convergently related spaced walls adapted to engage on the outer faces of a pair of converging disks and retain said disks in proximity to each other, the convergently related spaced walls terminating at'their inner ends in a relatively enlarged opening.

5. A guide and cleaner ofthe character described including a plate bifurcated at one end to provide blades having their inner edges convergently related and adapted to engage on the outer faces of a pair of converging disks and retain said disks in proximity to each other, the bifurcation defining said blades terminating at its inner end in an enlarged opening greater in width than the space between the cutting edges of the blades.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

J OHN' A. SWANSON.

Witnesses:

C. M. GILBERTSON, JAS. W. CLARKE.

Washington, D. G. 

